Getting my hopes up?

AF is late but that's a normal thing for me because I have irregular cycles. I had to push back the expected start day of my period on my calendar twice now! I know I shouldn't be wondering but my breasts have been hurting for 9 days!!! I mean really sore and they don't usually stay sore for this long when its just PMS... I hate when things get me wondering if I could be pregnant! Ive been super moody too but that could just be PMS as well... I wish my body could just be normal and have a regular cycle! Its so frustrating! Anyone else have things like that happen to them? I feel crazy! I tell my husband "oh i think I'm pregnant this month, im having some symptoms" and his reaction is "you say that every month..." I feel like I'm letting him down... He's never said that but I know its disappointing for him... I feel so down....